SOLVED! 16v stalling when idling and misfires

  1. #1
    I've had this problem for a while now...

    Basically, my 16v conversion has bad idling problems and threatens to stall whe. Idling.
    It would stall if you don't give it afew revs. Doesn't happen every time, but most times.

    And sometimes whilst setting off from junctions, it would misfire when accelerating with loss of power and very 'jerky movements'.
    To solve this, I have to give the car afew revs and then It would drive fine again.



    I have changed loads of parts/ sensors but still no joy.

    - new icv valve
    - new crank sensor
    - new air flow sensor
    - new fuel filter
    - different temperature sensor
    - different coilpack
    - new spark plugs
    - different lambda sensor
    - carburettor cleaner sprayed into inlet
    - injector cleaner used

    Probably afew other things I've missed off this list.

    What else should I look at?????

    Anyone think it could be the 4-2-1 manifold??
    Injectors?,
    Fuel pump???


    What you guys think?

    Thanks In advance
  2. #2
    I had a problem with a vacuum leak, made mine stall.
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  3. #3
    Quote:
    Originally Posted by Mickswan View Post
    I had a problem with a vacuum leak, made mine stall.
    Where was the problem and how did you solve it??
  4. #4
    Split hose on a breather going to the carbon canister. When I disconnected the breather it idled fine. No saying it's that but worth a shout.
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  5. #5
    Quote:
    Originally Posted by Mickswan View Post
    Split hose on a breather going to the carbon canister. When I disconnected the breather it idled fine. No saying it's that but worth a shout.
    Where do the hoses on the carbon canister go to?

    Yeah defo worth a go.. Running out of ideas thanks
  6. #6
    The carbon canister is tucked up in the inner wing.
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  7. #7
    Hmm.. Mine doesn't seem to have one.

    It's an s1 106 16v conversion.

    Anyone know where the hoses from the carbon canister go???

    I have just found the following.. Can anyone shed some light on these??



    - what is this hole / thread for in the inlet?! There is nothing in it...




    - the fuel pump/ sender unit.... What are these holes for... Should there be something attached to them???





    Abit off topic but does anyone know what this plug is for?? (Located just behind the passenger side headlight)




    I have now learnt a lesson... Never buy a car with an engine conversion!!


    Sorry for the noobie questions
  8. #8
    Also, since I don't have a carbon canister, the plug is just loose with nothing plugged in??

    Could this be sending the ECU a fault?? Do I need to plug something back in?
  9. #9
    For the carbon canister it runs from a nipple on the inlet to the canister then the canister has a feed from the tank for vapours. Just block it off on yours, your tank will be vented another way if it's not there

    Sent from my iPhone using Tapatalk
  10. #10
    Quote:
    Originally Posted by Gandi699 View Post
    For the carbon canister it runs from a nipple on the inlet to the canister then the canister has a feed from the tank for vapours. Just block it off on yours, your tank will be vented another way if it's not there

    Sent from my iPhone using Tapatalk
    We'll since mine doesn't have a carbon canister fitted, I was gonna look to where they should be connected and see if they are blocked off properly.

    Do you know where abouts on the tank it would be connected?? Allthough I'm doubtful mine will have it since it's a pre car 1992 model
  11. #11
    I meant on the inlet mate, where does the pipe if fitted run to?


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  12. #12
    Ahh .. the pipe from the inlet?

    I will check tomorrow and update the thread when I have traced it.

    Thanks
  13. #13
    Haven't checked the pipe yet, but I was driving along yesterday and the engine management light came in for a good 10 seconds and then went off?? What could this mean??
    When it came on there was no difference to the drive.
    Thanks

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  14. #14
    Intermittent fault is when EML is came on and off after some time...
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  15. #15
    Quote:
    Originally Posted by misulko View Post
    Intermittent fault is when EML is came on and off after some time...
    What do you mean by an 'intermittent fault'??

    Sent from my Samsung Galaxy S5 using Tapatalk
  16. #16
    With this being a conversion, where did you get the engine loom from?

    did you have to have it spliced?.

    If you swapped sensors and the loom is faulty, those sensor wont work.

    Pain in the arse but if you can get you hands on another loom, swap it and try that.

    If you had it spliced by someone professionally then thats not going to be the case.

    has this happened from the get go of the conversion, or has it happened much later on?
  17. #17
    PROBLEM SOLVED!

    Just thought I'd update this...

    After changing nearly every sensor on the whole car...
    It turns out to be a cracked exhaust manifold
    The lambda sensor must have been picking up oxygen through the crack/hole.

    Thanks for all your help guys!
    She's now running sweet

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  18. #18
    Quote:
    Originally Posted by DavidsVTR View Post
    What do you mean by an 'intermittent fault'??
    temporaty fault, not permanent...